John Schlaefer

Companies

• GCT Semiconductor Holding, Inc.Board member Mar 27, 2024 to now¹
• GCT Semiconductor Holding, Inc.Chief executive officer Mar 27, 2024 to now¹
• GCT Semiconductor Holding, Inc.President Mar 27, 2024 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• GSGCT Semiconductor Holding, Inc. GCTS352,728 shares²$537.0K at $1.52Sep 10, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 10, 2026Granted 150,000 shares of GCT Semiconductor Holding, Inc.²
• Sep 26, 2025Other 555 shares of GCT Semiconductor Holding, Inc.³
• Sep 19, 2025Granted 75,000 shares of GCT Semiconductor Holding, Inc.⁴
• Jan 13, 2025Exercised options 35,669 shares at $0.11 of GCT Semiconductor Holding, Inc.⁵
• Mar 26, 2024Granted 12,804 shares of GCT Semiconductor Holding, Inc.⁶
• Mar 26, 2024Granted 12,804 shares of GCT Semiconductor Holding, Inc.⁷
• Mar 26, 2024Granted 78,700 shares of GCT Semiconductor Holding, Inc.⁶
• Mar 26, 2024Granted 78,700 shares of GCT Semiconductor Holding, Inc.⁷